But you said yourself that you didn't understand the content of those dreams until after something happened that seemed to fit. To say that you "knew about certain things" is a misrepresentation.I can belive this but it doesnt explain how i knew about certain things. Like that dream about me working in the fab.
As for the dreams themselves, they do not seem all that remarkable. You dreamed about being in what may or may not have been a clean room, just a few weeks before starting a work placement in one. Did that work placement come completely out of the blue? I find it hard to believe that Intel would let just anyone into their plant. I'm betting that you had been doing a course that had some relevance to processor manufacturing, which implies that you would know something about the sort of environment that they are made in. You had almost certainly seen pictures or video of a typical clean room, and probably quite recently. You probably also had an idea that getting work in such a place was a possibility. And you had a dream about it. Big deal.
And a dream about feeling out of place? Please. That's a classic theme of dreams for people the world over. Coupled with the likelyhood that you probably picked up on some of the hints in your workplace that there was a staff shortage in one area, and there may be changes coming as a result, there doesn't really seem anything remarkable about the dream.
Dreams often have a way of presenting information that you already knew, but did not necessarily realize you knew, in a way that grabs your attention and becomes memorable. It would be a mistake to call that precognition, particularly after only a few dubious examples.